REVIEW article
Front. Plant Sci.
Sec. Crop and Product Physiology
Volume 16 - 2025 | doi: 10.3389/fpls.2025.1525268
This article is part of the Research TopicNatural Plant Compounds to Improve Sustainability and Resilience in AgricultureView all articles
Hydroxycinnamic Acid Amides in Rice: Biosynthesis, Distribution, Function and Implication for Crop Development
Provisionally accepted
Rongrong XueNing Gao
Jing ChenZicha WuNa SunYing LiMiuhua Gong
Rensen Zeng
Yuanyuan Song
Dong Mei Chen
Jie Wang*- Fujian Agriculture and Forestry University, Fuzhou, Fujian Province, China
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Rice (Oryza sativa L.) is critical for providing energy, nutrients and ensuring food security for over half of the world's population. However, like other crop plants, rice is vulnerable to various environmental stresses.To combat with these stresses, plants accumulate numerous secondary metabolites known as phytoalexins. Hydroxycinnamic acid amides (HCAAs) are a widely-distributed class of phenylpropanoid-derived phytoalexins with diverse biological functions. Increasing evidence highlights their pivotal roles in both abiotic and biotic stress responses, as well as in the modulation of plant growth and development. HCAAs are synthesized by inducible hydroxycinnamoyl transferases acting on the free amines and hydroxycinnamic acids, which provide HCAAs with a variety of metabolic, chemical, and functional capabilities due to diverse combinations among the parent compounds. This review synthesizes current knowledge to emphasize the importance of rice HCAAs, providing a comprehensive examination of their biosynthesis, distribution, biological functions, and regulatory mechanisms, particularly in relation to stress tolerance. Furthermore, the review seeks to further explore beneficial properties of HCAAs, as well as to advance their potential application in genetic breeding to develop elite crops.
Keywords: rice, Hydroxycinnamic acid amide, plant defense, metabolite, biosynthesis, Environmental stress
Received: 09 Nov 2024; Accepted: 05 May 2025.
Copyright: © 2025 Xue, Gao, Chen, Wu, Sun, Li, Gong, Zeng, Song, Chen and Wang. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.
* Correspondence: Jie Wang, Fujian Agriculture and Forestry University, Fuzhou, 350002, Fujian Province, China
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